chore(build): 将解决方案文件从 .sln 格式迁移到 .slnx 格式

- 移除旧的 JackCraft.Config.sln 文件
- 添加新的 JackCraft.Config.slnx 解决方案文件
- 保留 JackCraft.Config 和 Test 项目配置
- 维持 LICENSE 和 Readme.MD 文件引用
- 更新解决方案文件格式以支持新版本 Visual Studio

JackCraft.Config.sln

@@ -1,28 +0,0 @@
-
-Microsoft Visual Studio Solution File, Format Version 12.00
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "JackCraft.Config", "JackCraft.Config\JackCraft.Config.csproj", "{96DD0E6E-8CE2-42DE-87A9-111D9198CE76}"
-EndProject
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Folder", "Solution Folder", "{1D7EF989-92C0-4831-BD2D-995DC966C6D0}"
-	ProjectSection(SolutionItems) = preProject
-		LICENSE = LICENSE
-		Readme.MD = Readme.MD
-	EndProjectSection
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Test", "Test\Test.csproj", "{F0FF027F-CAFB-4DD2-8B59-4CFD9DAFBB04}"
-EndProject
-Global
-	GlobalSection(SolutionConfigurationPlatforms) = preSolution
-		Debug|Any CPU = Debug|Any CPU
-		Release|Any CPU = Release|Any CPU
-	EndGlobalSection
-	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{96DD0E6E-8CE2-42DE-87A9-111D9198CE76}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{96DD0E6E-8CE2-42DE-87A9-111D9198CE76}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{96DD0E6E-8CE2-42DE-87A9-111D9198CE76}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{96DD0E6E-8CE2-42DE-87A9-111D9198CE76}.Release|Any CPU.Build.0 = Release|Any CPU
-		{F0FF027F-CAFB-4DD2-8B59-4CFD9DAFBB04}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{F0FF027F-CAFB-4DD2-8B59-4CFD9DAFBB04}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{F0FF027F-CAFB-4DD2-8B59-4CFD9DAFBB04}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{F0FF027F-CAFB-4DD2-8B59-4CFD9DAFBB04}.Release|Any CPU.Build.0 = Release|Any CPU
-	EndGlobalSection
-EndGlobal

JackCraft.Config.slnx

@@ -0,0 +1,8 @@
+<Solution>
+  <Folder Name="/Solution Folder/">
+    <File Path="LICENSE" />
+    <File Path="Readme.MD" />
+  </Folder>
+  <Project Path="JackCraft.Config/JackCraft.Config.csproj" />
+  <Project Path="Test/Test.csproj" />
+</Solution>